Sorry Kim Kardashian - Caitlyn Jenner officially breaks the internet as she gains over 1million followers in just four hours

Kris Jenner's ex-husband says she is 'humbled' by the support after unveiling her female identity

IT'S been a very busy day for Caitlyn Jenner - she's only gone and broke the internet.

After publicly unveiling her new look on the cover of Vanity Fair and the female name she will now be using, Caitlyn grabbed herself a world record.

Caitlyn Jenner has gained a new world record after posing in the July issue of Vanity Fair - out June 12[Vanity Fair]

In just four hours, Kim Kardashian's step-dad notched up an incredible 1million Twitter followers, and the number is still increasing.

After Guiness World Records confirmed the incredible feat, Caitlyn took to Twitter to thank everyone for the support they've offered so far.

She wrote: "Another Jenner world record, and at 65? Who'da thought! Humbled & honoured to have reached 1M followers in 4 hrs. Thank you for your support."

The record was previously held by US president Barack Obama after he joined the social media site.

The reality star earned herself 1million followers in just four hours[Lady Gaga/Twitter]

Despite just one post on her new Instagram account, she's also racked up a huge amount of followers on the photo-sharing site.

The reality star joined social media at the same time as revealing her new look in an amazing cover shot by Annie Leibovitz.

Her family have been very supportive of her decision. Step-daughter Khloe Kardashian posted the photo shoot on her Instagram page captioning it: "We were given this life because you were strong enough to live it! I couldn't be prouder!!! Caitlyn"

Kim added: "Caitlyn Jenner for Vanity Fair. Annie Leibovitz! How beautiful! Be happy, be proud, live life YOUR way!"